What is CC BY 4.0?

Photographers license their work. Some of my photos are copyright protected and may not be downloaded or used in any way (all rights reserved). Other pictures, however, are available for you to use under a Creative Commons attribution license. Any of my pictures tagged with CC BY 4.0 Int. are free for you to use in accordance with the terms of the CC attribution license. The conditions of an attribution license are very simple (click the image below for more information about this license). A CC license is not the same thing as releasing a picture into the public domain. I have not chosen to release my pictures into the public domain.